Palatability of different urea oral formulations used in the treatment of low blood sodium levels

ISRCTN ISRCTN18369035
DOI https://doi.org/10.1186/ISRCTN18369035
Secondary identifying numbers CLAB/01/2023
Submission date
23/06/2023
Registration date
26/06/2023
Last edited
07/12/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aim
Hyponatremia (when the sodium level in the blood is below normal) is the most common disorder of electrolytes encountered in clinical practice. HN is associated with illness and death, so it is important to identify treatments for these patients. Oral urea represents an effective, safe, and well-tolerated approach to the management of chronic hyponatremia. Oral urea is commonly prepared as a galenic formulation that is usually associated with distaste problems. The aim of this study is to compare the palatability of two different urea formulations: a commercial urea formulation and a galenic one.

Who can participate?
Healthy volunteers aged 50 to 60 years old

What does the study involve?
Participants are randomly allocated to consume the urea formulation A or B twice a day away from meals, solubilizing the products in 125 ml of water (T0). After a 3-day break, participants swap over and consume the other formulation twice a day away from meals. After the consumption of products, both in the morning and in the evening, participants complete a specific questionnaire to evaluate their palatability.

What are the possible benefits and risks of participating?
The study aims to identify a urea formulation with good taste to improve adherence to the therapy in patients with chronic hyponatremia. No specific risks are expected.

Where is the study run from?
Eurofins Cosmetics & Personal Care Italy S.r.l (Italy)

When is the study starting and how long is it expected to run for?
April 2023 to May 2023

Who is funding the study?
Difa Cooper SPA (Italy)

Who is the main contact?
Dr Massimo Milani, massimo.milani@difacooper.com

Contact information

Dr Massimo Milani
Public

Via Milano 160
Caronno Pertusella
21042
Italy

ORCiD logoORCID ID 0000-0001-7559-1202
Phone +39 (0)29659031
Email massimo.milani@difacooper.com
Dr Francesca Colombo
Public

Via Milano 160
Caronno Pertusella
21042
Italy

ORCiD logoORCID ID 0000-0002-8099-0192
Phone +39 (0)29659031
Email francesca.colombo@difacooper.com

Study information

Study designMonocentric randomized double-blind two-arm cross over clinical trial
Primary study designInterventional
Secondary study designRandomised cross over trial
Study setting(s)Other
Study typeQuality of life
Participant information sheet Not available in web format, please use the contact detail to request a patient information sheet
Scientific titlePalatability of two different formulations of urea for the treatment of hyponatremia: a double-blind, cross-over study
Study acronymUrHyp
Study objectivesThe aim of this study was to evaluate, in a panel of healthy human subjects, the palatability of two different urea formulations: a commercial formulation (Food for Special Medical Purposes) was compared to a galenic one.
Ethics approval(s)

Approved 26/04/2023, Internal Revision Committee of Cosmetics & Personal Care Italy Srl (via Bruno Buozzi, 2, Vimodrone (MI), 20055, Italy; +39 (0)2 25 071 51; InfoCosme@eurofins.com), ref: STUN723AA0075

Health condition(s) or problem(s) studiedHyponatremia
InterventionThe study evaluated the palatability of two urea formulations and was divided into two cross-over phases. Each participant consumed formulation A or formulation B twice a day away from meals, solubilizing the products in 125 mL of water (T0). After 3 days of wash-out (T1-T3, discontinuation of product intake), the formulations were cross-over and consumed twice a day away from meals (T4).

Participants were randomized to consume a commercial urea formulation (Food for Special Medical Purposes, UREAL NM, Cantabria Labs, Difa Cooper, Caronno Pertusella, Italy) and a galenic urea formulation. The randomization list was generated by a dedicated computer program. The commercial urea formulation contains urea, flavouring, dextrose, sweeteners: sucralose, aspartame, acidifier: citric acid; the galenic formulation contains only urea. Participants consumed 7 g of each product (formulation A or formulation B) twice daily, solubilized in 125 ml of water.
Intervention typeOther
Primary outcome measureProduct palatability measured using a questionnaire modified from IJpma et al (2016) filled in by the test subjects after each intake on T0 and T4
Secondary outcome measuresThere are no secondary outcome measures
Overall study start date10/04/2023
Completion date02/05/2023

Eligibility

Participant type(s)Healthy volunteer
Age groupAdult
Lower age limit50 Years
Upper age limit60 Years
SexBoth
Target number of participants30
Total final enrolment36
Key inclusion criteria1. Age 50-60 years
2. 50% female and 50% male
3. Non-smokers
Key exclusion criteria1. Personal history of taste disorders
2. Presence of conditions capable of altering the sense of taste
Date of first enrolment27/04/2023
Date of final enrolment27/04/2023

Locations

Countries of recruitment

  • Italy

Study participating centre

Cosmetics & Personal Care Italy Srl
via Bruno Buozzi, 2
Vimodrone (MI)
20055
Italy

Sponsor information

Difa Cooper (Italy)
Industry

Via Milano 160
Caronno Pertusella
21042
Italy

Phone +39 (0)2 9659031
Email stefano.fatelli@difacooper.com
Website http://www.difacooper.com/
ROR logo "ROR" https://ror.org/044sr7e96

Funders

Funder type

Industry

Difa Cooper

No information available

Results and Publications

Intention to publish date01/10/2023
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryStored in non-publicly available repository, Available on request
Publication and dissemination planThe future publication plan is to submit the results to a peer-reviewed high impact factor journal
IPD sharing planThe dataset generated during the current study will be available upon request from Dr Francesca Colombo (francesca.colombo@difacooper.com). The final study report and raw data of all participants could be available on request.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 09/11/2023 07/12/2023 Yes No

Editorial Notes

07/12/2023: Publication reference added.
26/06/2023: Study's existence confirmed by the Eurofins Cosmetics & Personal Care Italy S.r.l..